<template>
  <div>
  <!-- 头部 -->
        <header class="header">
            <!-- 头部的第一行 -->
            <div class="top">
                <div class="container">
                    <div class="loginList">
                        <p>尚品汇欢迎您！</p>
                        <p v-if="userInfo.name">你好，&nbsp;&nbsp;<span>
                            {{userInfo.name}}
                        </span>
                        <button @click="logout">退出</button>
                        </p>
                        <p v-else>
                            <span>请</span>
                            <router-link to="/login">登录</router-link>
                            <router-link to="/register" class="register">免费注册</router-link>
                        </p>
                    </div>
                    <div class="typeList">
                        <a href="###">我的订单</a>
                        <router-link to="/ShopCart/">我的购物车</router-link>
                        <a href="###">我的尚品汇</a>
                        <a href="###">尚品汇会员</a>
                        <a href="###">企业采购</a>
                        <a href="###">关注尚品汇</a>
                        <a href="###">合作招商</a>
                        <a href="###">商家后台</a>
                    </div>
                </div>
            </div>
            <!--头部第二行 搜索区域-->
            <div class="bottom">
                <h1 class="logoArea">
                    <router-link class="logo" title="尚品汇" to="/home" >
                        <img src="./images/logo.png" alt="">
                    </router-link>
                </h1>
                <div class="searchArea">
                    <form action="###" class="searchForm">
                        <input type="text" id="autocomplete" class="input-error input-xxlarge" v-model="keyword" />
                        <button class="sui-btn btn-xlarge btn-danger" type="button" @click="qbzsearch" >搜索</button>
                    </form>
                </div>
            </div>
        </header>
  </div>
</template>

<script>
import router from '@/router'
import { mapState } from 'vuex'
export default {
    name: 'Header',
    data() {
        return {
            keyword:''
        }
    },

//编程式导航
    methods: {
        qbzsearch() {
            // 解决编程式导航报错
            // 方法一
            // this.$router.push('/seach',
            //     () => { console.log('成功');},
            //     () => { console.log('失败');}
            // ),
            // 方法二
            // 在程序逻辑中, 需要在易出现问题的逻辑代码片段上, 加持try-catch方法, 这样做可以抛出错误, 但是不会影响整个程序运转;
            // this.$router.push('/seach',).catch(() => {
            //     console.log('抛出错误');
            //   })
            // 方法三修改重写路由原型上的push方法，治根，从源头杜绝报错
            // this.$router.push('/seach')

           //编程式导航加搜索框内的参数
            let {query}=this.$route
            this.$router.push({
                name: 'search',
                // path: '/search',

                params: {
                   
                   keyword:this.keyword ||undefined
                },
                query,

            })
          
        },
  //退出

      logout() {
      this.$store.dispatch("user/userLogout")
  }
    },
    computed: {
       //映射登录数据
    ...mapState('user',['userInfo'])
},

//挂载完毕后
    mounted() {
      //清空搜索框
                this.$bus.$on('empty', () => {
             this.keyword=''
                
            })
    },
//组件销毁前
    beforeDestroy() {
    this.$bus.$off('empty')
}
}
</script >

<style lang="less" scoped>
    .header {
        &>.top {
            background-color: #eaeaea;
            height: 30px;
            line-height: 30px;

            .container {
                width: 1200px;
                margin: 0 auto;
                overflow: hidden;

                .loginList {
                    float: left;

                    p {
                        float: left;
                        margin-right: 10px;

                        .register {
                            border-left: 1px solid #b3aeae;
                            padding: 0 5px;
                            margin-left: 5px;
                        }
                    }
                }

                .typeList {
                    float: right;

                    a {
                        padding: 0 10px;

                        &+a {
                            border-left: 1px solid #b3aeae;
                        }
                    }

                }

            }
        }

        &>.bottom {
            width: 1200px;
            margin: 0 auto;
            overflow: hidden;

            .logoArea {
                float: left;

                .logo {
                    img {
                        width: 175px;
                        margin: 25px 45px;
                    }
                }
            }

            .searchArea {
                float: right;
                margin-top: 35px;

                .searchForm {
                    overflow: hidden;

                    input {
                        box-sizing: border-box;
                        width: 490px;
                        height: 32px;
                        padding: 0px 4px;
                        border: 2px solid #ea4a36;
                        float: left;

                        &:focus {
                            outline: none;
                        }
                    }

                    button {
                        height: 32px;
                        width: 68px;
                        background-color: #ea4a36;
                        border: none;
                        color: #fff;
                        float: left;
                        cursor: pointer;

                        &:focus {
                            outline: none;
                        }
                    }
                }
            }
        }
    }

</style>